NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1417035213 MD
Verify on CMS → Lorca Rossman, MD
Emergency Medicine Physician in Oakland, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,398 in Emergency Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
162
Medicare Part D claims · 114 beneficiaries · Emergency Medicine Physician avg: 352
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lorca Rossman, MD filed 162 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Oakland, California.
- 162
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Lorca Rossman, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
162 35th percentile higher than 35% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Lorca Rossman, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Lorca Rossman, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
162 54% vs specialty avg
Specialty distribution in California
How Emergency Medicine Physician compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Emergency Medicine Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Lorca Rossman, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 275 W MACARTHUR BLVD, Oakland, CA, 94611, with a listed phone of (510) 752-1000. NPI 1417035213 was issued on 11/01/2006.
Medicare Part D records for calendar year 2023 show 162 prescription claims written by this provider, covering 114 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 8.6%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1417035213 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/01/2006 |
Hospital and facility affiliations
Facilities where Lorca Rossman, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Permanente Medical Group Inc
Richmond, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Lorca Rossman, MD. To verify Lorca Rossman, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
162
Total Claims
$4K
Total Drug Cost
114
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 200
- Total Day Supply
- 3,732
- Generic Drug Cost
- $2K
- Opioid Claims
- 14 (8.6% rate)
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 1.57
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 17, 65-74: 39, 75-84: 36, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lorca Rossman, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
14 claims
- Ondansetron Odt
Ondansetron Odt
14 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
12 claims
- Cefadroxil
Cefadroxil
11 claims
- Prednisone
Prednisone
11 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 14 |
| Ondansetron Odt Ondansetron | 14 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
| Cefadroxil | 11 |
| Prednisone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Lorca Rossman, MD fits within the Emergency Medicine Physician landscape nationally.
64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Lorca Rossman, MD's 162 claims are below the specialty average of 352.
Nearby Emergency Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Rossman.
Dr. Cooper Aakhus
MD
Stanford, CA
Dr. Pyra Aarden
MD
Martinez, CA
Dr. Neal Aaron
D.O.
Encinitas, CA
Eric Aaserude
Walnut Creek, CA
Dr. Nader Abas
MD
Barstow, CA
Compare Emergency Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Lorca Rossman, MD's specialty? ▼
Lorca Rossman, MD specializes in Emergency Medicine Physician and practices in Oakland, California. Credentials: MD.
How much does Lorca Rossman, MD prescribe under Medicare Part D? ▼
In 2023, Lorca Rossman, MD wrote 162 Medicare Part D claims totaling $4K in drug costs for 114 beneficiaries.
Where is Lorca Rossman, MD located? ▼
Lorca Rossman, MD is located at 275 W MACARTHUR BLVD, Oakland, CA, 94611. Phone: (510) 752-1000.
What is Lorca Rossman, MD's NPI number? ▼
Lorca Rossman, MD's National Provider Identifier (NPI) is 1417035213, issued on 11/01/2006.
Does Lorca Rossman, MD prescribe opioids? ▼
Yes, Lorca Rossman, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 8.6%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Lorca Rossman, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Lorca Rossman, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Ondansetron Odt, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lorca Rossman, MD accept Medicare? ▼
Lorca Rossman, MD appears in CMS Medicare data with 162 Part D claims and 114 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lorca Rossman, MD's credentials? ▼
Lorca Rossman, MD's NPI is 1417035213 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.